Interesting Information about Koi Fish SpeciesThere are over 32,000 different Fish Species in the world. A person who studies Koi Fish Species is called an ichthyologist. So welcome to all ichthyologists! There are links to sections of the most popular species. Each one of the individual species we have featured provides interesting facts, information and stunning photographs and videos. A great resource for identifying different types of fishes and their species together with useful facts and information. All Koi Fish Species are vertebrates (have a backbone) and most breathe through gills and have fins and scales. Many species also have a variety of protrusions or spines on the head.

Interesting Koi Fish Species Information and Facts - How are different Koi Fish Species identified?The colours, shapes and sizes of individual koi fishes varies enormously - you really need excellent quality pictures or photographs to assist in the identification process. A combination of the number of fins and their characteristics, color, scale counts, general features, maximum length and distribution are used during a species identification process. The species detailed on this website are Tropical, Saltwater, Aquarium , Marine , Pet , Pond, Clown, Koi, Beta (Betta), Gold Fish (Goldfish), Star, Angel, Puffer, Discus, Piranha, Rainbow, Parrot, Crustaceans, Sea Anemones and Coral.

Interesting Information and Facts - How do you identify the sex of a particular species?The male and female of many Koi Fish Species have different colors or different shaped bodies. But there are also other species where there is no visible difference. Its sometimes tricky being an ichthyologist!

Koi Fish Species - Information about Fins - Did you know that each fin has a specific function?

Koi Fish Species

The dorsal fin is located on the back of the fish and it helps to keep the fish stable while swimming

Caudal fins are located on the tail area of fishes and they help to propel the fish through the water

The Pectoral fin is located on the breast area of a fish and they are used for locomotion and side to side movement

Interesting Information and Facts - Why do most Koi Fish Species have gills?Gills enable most Koi Fish Species to breathe. Gills consist of thin sheets of tissue containing blood vessels. As water passes over the gills oxygen is absorbed into the blood stream Carbon dioxide passes out into the water. The gills are protected by a large bony plate called an operculum. Some species, however have lungs and breathe air.

InterestingInformation and Facts - Why do different species have fins?Fish usually have seven fins. Each of the fins on a fish are designed to perform a specific function:

Dorsal fins - The dorsal fin is located on the backs of fishes. Dorsal fins lend stability in swimmingVentral fins - The ventral fin is located on the pelvic area of fishes. Ventral fins lend stability in swimmingCaudal fins - The Caudal fin is located on the tail area of fishes. Caudal fins propel through the waterAnal fins - The Anal fin is located on the anus area of fishes. Anal fins lend stability in swimming.Pectoral fins - The Pectoral fin is located on the breast area of fishes. Pectoral fins are for locomotion and side to side movementAdipose fins - The Adipose fin is an extra fleshy fin on the back behind the dorsal fin as in salmons, smelts, and lanterns to lend stability in swimmingCephalic fins - The cephalic fin are the "horns" of manta rays and close relations

Koi Fish Species - Facts

How are the different fishes species identified? Why are they slimy? Important Koi Fish Species Facts and info - How do you identify the sex of a particular species? Species Facts and Info - Why do most have gills? - Why do different species have fins? Tropical Species, Saltwater Species, Aquarium Species, Marine Species, Pet Species, Pond Species, Clowns, Kois, Betas (Bettas), Gold Fish (Goldfish), Star, Angels, Puffers, Discus, Piranhas, Rainbow, Parrots, Crustaceans, Sea Anemones, Corals.

Fish Species - FactsInteresting Information and facts on different species. Did you know that...

Koi Fish are also known as Nishikigoi

The most popular type of Koi fish is the Gosanke also known as the Big Three and are made up of the Kohaku, Taisho Sanke and Showa Sanke varieties

The plural of the word fish is fishes, however when describing more than one fish of the same species, the word fish is still used instead of the plural! An example would be 20 Puffer Fish, not 20 Puffer Fishes!

The word Koi comes from the Japanese word meaning carp

Angelfish breed for life. If one of the pair dies, the other will not breed again!

Some fish are not good for community tanks! Ask your local pet store before you buy new additions for your tank

The Stygotantulus stock is the smallest Crustacean in the world, measuring less than 0.1mm in length!

Angelfish can become aggressive towards other fish and even eat smaller fish such as Neon Tetras!

Someone who studies different Koi Fish Species is called an ichthyologist

There are different species found all over the world, we have tried to include as many aquatic species as possible on this website

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Koi Fish Species

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Amazing facts about all types of aquatic species

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Information on habitat and specific conditions required for each Koi species